Question

How and what is this

Answer 1

number 1 GCF=3 LCM=84

number 2 GCF=10 LCM=30

number 3 GCF=8 LCM=80

number 4 GCF=4 LCF=36

number 5 GCF= 1 LCF=378

number 6 GCF=2 LCM=238

number 7 GCF=1 LCM=280

number 8 GCF=10 LCM=20